Unocal Corp.

For the fourth quarter ended Dec. 31, the El Segundo-based oil and gas exploration and production company reported earnings of $268 million ($1 per diluted share), versus $180 million (68 cents) for the like year-ago period. Revenues from continuing operations rose to $2.4 billion from $1.6 billion in the fourth quarter of 2003.

Nara Bancorp Inc.


For the fourth quarter ended Dec. 31, the L.A.-based holding company for Nara Bank reported net income of $5.6 million (23 cents per diluted share), versus $4 million (16 cents) for the like year-ago period. The company’s total assets as of Dec. 31 increased 20 percent to $1.5 billion.

Kilroy Realty Corp.


For the fourth quarter ended Dec. 31, the L.A.-based real estate investment trust reported net income of $2.2 million (8 cents per diluted share), versus $4.9 million (18 cents) for the year-ago period. Revenues from continuing operations totaled $58 million, up from $53 million in the prior year’s fourth quarter.

THQ Inc.


For the third quarter ended Dec. 31, the Calabasas Hills-based video game publisher reported net income of $62.9 million ($1.58 per diluted share), compared with $30.4 million (78 cents) for the year-ago period. Net sales rose 37 percent to $400.3 million from $293.1 million in the prior-year period.

Zenith National Insurance Corp.


For the fourth quarter ended Dec. 31, the Woodland Hills-based workers’ compensation insurer reported net income of $43.7 million ($1.83 per diluted share), compared with $20.8 million (92 cents) for the like year-ago period. Gains were driven by a 20 percent increase in workers’ compensation net premiums earned, compared with the same period of 2003.